Process for heating and firing boilers by means of oil.



'm'rmmn SEPT. 26, 1905.

v E. KURTING. PROCESS FOR HEATING AND FIRING BOiLERS BY MEANS OF OIL.

APPLICATION FILED FEB. 28.1902.

UNITED STATES PATENT] OFFICE.

ERNST KCRTING, OF HANOVER, GERMANY.

PROCESS FOR HEATING AND FIRING BOILERS BY MEANS OF OIL-- To aZZ tuhom it ma concern.-

Be it known that I, ERNST KoR'rINe, a subject of the King of Prussia, German Em- 'peror, residing at Hanover, Germany, (whose post-oflice address is No. 2 Alleestrasse, Hanscription of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a process for heating and firing boilers by means of oil, and essentially conslsts in introducing the 011 under pressure into a tube, heating the same in this tube to a point lying higher than that at which under atmospheric pressure vapors would be developed, or its normal boilingpoint, but lower than that point at which vapors are generated under the pressure the oil is subjected to, spraying the heated oil into the combustion-chamber and introducing air into the spray within the combustion-chamber. It is evident that a considerable amount of Vapor is developed when the heated oil under pressure is sprayed from the nozzles into the combustion-chamber and that by the generation of vapor the small particles of sprayed oil are again so minutely disaggregated that they are completely burned in the current of air that is introduced into the spray.

In the accompanying drawings an oil-firing is represented suitable 'for the new process, of which Figure 1 is a vertical longitudinal section, and Fig. 2 a section on the line 2 2 of Fig. 1. The oil is forced by a pump 0 into the coil 65 and from there into one or more nozzles- 6, opening into the combustion-chamber I). The coil d is arranged in a superheater f, into which the high-pressure steam serving as heating medium is supplied by a tube g and led off by tube t. In the steam-supply pipe g a regulating-valve h is disposed for regulating thetemperature up to which the oil is to be heated. In the front wall of the combustion-chamber Z; of the furnace are provided airinlet openings Z, regulated by damper m, with apertures n. Around the spraying-nozzles e, and more especially around the air-inlet open- Specification of Letters Patent.

Application filed February 28, 1902. Serial No. 96,035.

pressure the oil is subjected to.

Patented Sept.. 26, 1905.

higher than that at which the oil' under at-i mospheric pressure would develop vapor, or its normal boilingpoint, but lower than the point at which vapors are generated under the The heated oilupon entering into the combustion-chamber will generate vapor, whereby the fine particles of oil formed bythe action of the distributing or spraying nozzle e will be separated into minute parts. The fine oil-spray mixes at once and intimately with the air-current passing in through the openings Z and is conducted on the spray by the ring 0, so that a complete and smokeless combustion is insured.

} What I'claim, and desire to secure by Letters Patent of the United States, is

1. The process of firing by means of oil, which consists in heating the liquid oil unmixed with'airor other gases to a point above its normal boiling-point, maintaining the oil in a liquid state by pressure while so heated and until delivered to the combustion-chamber, and then delivering the superheated liquid oil into a combustion-chambe'r supplied with air, whereby the rapid disintegration and vaporization of the oil in the presence of air is secured, substantiallyas and for the purpose stated. V

2. The process of firing by means of oil, which consists in introducing liquid oil unmixed with air or other gases under pressure I into a tube, heating the oil in'the tube to a point above its normal boiling-point but below the pointat which vapors are generated under the pressure to which the 'oil is subjected, maintaining the oil in its liquid state by pressure until delivered to the combustionchamber, and spraying the superheated liquid under the pressure to which the oil is sub- In testimony whereof I have hereunto set ected, maintaining the 011 1n 1ts liquid state my hand in presence of two subscribing witby pressure untll dehvered to the combust1onnesses.

chamber, spraying the superheated liquid oil ERNST K( )RT1N G. 5 into the combustion-chamber, and introducing Witnesses:

air into the spray, substantially as and for the LEONORE KASCH,

purpose stated. C. C. STEVENSON. 

